66 every night but they had away in the swamp in the day time and could not be found. My crotons runways were abundant in the salt marsh meadows. Were they had cut wide trails (2 to 3 inches) along the bottoms of small ditches and in places had dug up mounds of sand and fine soil that occurred in places. Just in front of one of the tents at camp there was a meadow mouse that was digging in the loose loam under a large spruce tree. He would burrow down in the ground and then push the dirt out with his fore legs just like a Thomson's. The mounds were 10 to 12 inches across and 4 to 6 inches high and were similar in every respect to gopher "diggin's". I watched the mouse at work for several different occasions before I became convinced that it was not a gopher as I had never known a Mycrotus to dig in the ground and throw out mounds of earth like a gopher before. On the morning of the 25th I saw a half-grown meadow mouse